fixes for /bin/sh

Author: Raphaël Droz

docker-entrypoint.sh

@@ -126,10 +126,10 @@ if [[ "$1" == apache2* ]] || [ "$1" == php-fpm ]; then
 		: "${WORDPRESS_DB_PASSWORD:=}"
 		: "${WORDPRESS_DB_NAME:=wordpress}"
 
-		if [ -e wp-config.php && -n "$NO_AUTO_CONFIG" ]; then
+		if [ -e wp-config.php ] && [ "${AUTO_CONFIG:-0}" == 1 ]; then
 			exec "$@"
 		fi
-		if [ -e wp-config.php && ! -w wp-config.php ]; then
+		if [ -e wp-config.php ] && [ ! -w wp-config.php ]; then
 			exec "$@"
 		fi
 		# version 4.4.1 decided to switch to windows line endings, that breaks our seds and awks